USS Sailfish (SS-192)
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USS Sailfish (SS-192), was a US Sargo-class submarine, originally named Squalus. As Squalus, the submarine sank off the coast of New Hampshire during test dives on 23 May 1939. The sinking drowned 26 crew members, but an ensuing rescue operation, using the McCann Rescue Chamber for the first time, saved the lives of the remaining 33 aboard. Squalus was salvaged in late 1939 and recommissioned as Sailfish in May 1940.
USS Sailfish (SS-192), off the Mare Island Navy Yard, Vallejo, California, 13 April 1943
SS-192 in drydock after salvage
Conning tower of SS-192 on display at Portsmouth Naval Shipyard, seen during a 2013 visit by General Martin Dempsey, then Chairman of the Joint Chiefs of Staff.
McCann Rescue Chamber
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The McCann Submarine Rescue Chamber is a device for rescuing submariners from a submarine that is unable to surface.
Cutaway drawing of the McCann Rescue Chamber.
Image: Submarine Rescue Chamber USN